The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

High throughput fabrication of nanoscale optoelectronic devices on large area flexible substrates using adhesion lithography

High throughput fabrication of nanoscale optoelectronic devices on large area flexible substrates using adhesion lithography
High throughput fabrication of nanoscale optoelectronic devices on large area flexible substrates using adhesion lithography
Nanoscale optoelectronic devices based on coplanar nanogap electrodes, when compared with traditional vertical devices, exhibit attractive characteristics, such as high density of integration, high sensitivity, fast response and multifunctionality. Moreover, their low-cost high-throughput fabrication on flexible disposable substrates opens up several new applications in sectors ranging from telecommunications and consumer electronics to healthcare - to name a few. However, their commercial exploitation has been hitherto impeded by technological bottlenecks, owing to the incompatibility of currently available fabrication techniques, eg. e-beam lithography, with industrial upscaling. Adhesion lithography is a nanopatterning technique that allows the facile high yield fabrication of coplanar metal electrodes separated by a sub-15 nm gap on large area substrates of any type, including plastic. These electrodes, when combined with solution-processed and/or low-dimensional nanostructured materials deposited at low, plastic-compatible, temperatures give rise to nanoscale optoelectronic devices with intriguing properties. It will be shown that both nanoscale light-emitting and light-sensing devices can be fabricated upon using light-emitting polymers along with self-assembling surface modifiers, and lead halide perovskites and functionalised colloidal PbS quantum dots, respectively. Emphasis will be given in recent advances in flexible nanoscale photodetectors fabricated with nanogap coplanar electrodes, operating in DUV up to NIR part of the spectrum. These devices exhibit high responsivity, sensitivity and fast response speed (hundreds of nanoseconds) owing to the extreme downscaling of key device dimensions. These results demonstrate that adhesion lithography combined with advanced materials concepts constitutes a new fabrication paradigm enabling a plethora of advanced applications within the field of flexible electronics.
1093003
Georgiadou, Dimitra G.
84977176-3678-4fb3-a3dd-2044a49c853b
McLachlan, Martyn A.
8cdefe50-9bd2-4ed5-81da-c5ebbfd9e2b1
Anthopoulos, Thomas D.
d6ee9390-d991-4277-a721-030f22d614c9
Georgiadou, Dimitra G.
84977176-3678-4fb3-a3dd-2044a49c853b
McLachlan, Martyn A.
8cdefe50-9bd2-4ed5-81da-c5ebbfd9e2b1
Anthopoulos, Thomas D.
d6ee9390-d991-4277-a721-030f22d614c9

Georgiadou, Dimitra G., McLachlan, Martyn A. and Anthopoulos, Thomas D. (2019) High throughput fabrication of nanoscale optoelectronic devices on large area flexible substrates using adhesion lithography. SPIE OPTO - Photonics West: Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XII, , San Francisco, United States. 02 - 07 Feb 2019. p. 1093003 .

Record type: Conference or Workshop Item (Paper)

Abstract

Nanoscale optoelectronic devices based on coplanar nanogap electrodes, when compared with traditional vertical devices, exhibit attractive characteristics, such as high density of integration, high sensitivity, fast response and multifunctionality. Moreover, their low-cost high-throughput fabrication on flexible disposable substrates opens up several new applications in sectors ranging from telecommunications and consumer electronics to healthcare - to name a few. However, their commercial exploitation has been hitherto impeded by technological bottlenecks, owing to the incompatibility of currently available fabrication techniques, eg. e-beam lithography, with industrial upscaling. Adhesion lithography is a nanopatterning technique that allows the facile high yield fabrication of coplanar metal electrodes separated by a sub-15 nm gap on large area substrates of any type, including plastic. These electrodes, when combined with solution-processed and/or low-dimensional nanostructured materials deposited at low, plastic-compatible, temperatures give rise to nanoscale optoelectronic devices with intriguing properties. It will be shown that both nanoscale light-emitting and light-sensing devices can be fabricated upon using light-emitting polymers along with self-assembling surface modifiers, and lead halide perovskites and functionalised colloidal PbS quantum dots, respectively. Emphasis will be given in recent advances in flexible nanoscale photodetectors fabricated with nanogap coplanar electrodes, operating in DUV up to NIR part of the spectrum. These devices exhibit high responsivity, sensitivity and fast response speed (hundreds of nanoseconds) owing to the extreme downscaling of key device dimensions. These results demonstrate that adhesion lithography combined with advanced materials concepts constitutes a new fabrication paradigm enabling a plethora of advanced applications within the field of flexible electronics.

This record has no associated files available for download.

More information

Published date: 4 March 2019
Venue - Dates: SPIE OPTO - Photonics West: Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XII, , San Francisco, United States, 2019-02-02 - 2019-02-07

Identifiers

Local EPrints ID: 440490
URI: http://eprints.soton.ac.uk/id/eprint/440490
PURE UUID: f432b989-966b-439d-8423-85c020c861d0
ORCID for Dimitra G. Georgiadou: ORCID iD orcid.org/0000-0002-2620-3346

Catalogue record

Date deposited: 05 May 2020 16:42
Last modified: 13 Dec 2021 03:36

Export record

Contributors

Author: Dimitra G. Georgiadou ORCID iD
Author: Martyn A. McLachlan
Author: Thomas D. Anthopoulos

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×